While the original post does strike of trollishness, I have to admit, I agree.
Good trim is possible in almost any configuration of gear, and equipment shouldn't be used to solve skills problems.
A lot of what goes on on SB strikes me as amusing. There seem to be a LOT of users here who dispense "technical" advice, even though in practice, I don't see a ton of people diving in technical configurations. I think technical gear configurations are used by people of a certain mindset, and I think forums are used by people of a certain mindset, and I think there is considerable overlap between those mindsets.
I reccomend that people buy back inflate bouyancy systems, but I don't tell them what to buy, and I try to avoid pushing my opinions on people.
Another issue entirely is the BS reasons people give for using a BP/W. I like aluminum plates, and if I was traveling, would use kydex or whatnot for even lighter rigs. What do I like about BP/W?
1. I need a hard plate to haul around tanks that weigh over 120# when doubled up.
2. I like that I can change webbing when it gets old. Having torn up BC's before, it's nice to know $10 of webbing=brand new system.
3. I like that I can easily move my D rings around to wherever I want them, and add as many as I want or as few as I want.
4. It's nice to have one backplate that fits me perfectly, that I can use with any of four different wings I own.
5. back inflate systems make good trim a breeze compared to "poodle jacket" BC's, but this is not inherent only to BP/W systems.
That stuff about putting weight on your back instead of your belt...mmm, if you want...but it's not for me. I prefer to put weight in my tanks (by using big steel tanks), because travel is not an issue (weight limits with BP) then, and the system is more flexible. an SS backplate with huge steel doubles=way overweighted. With a light plate, I can easily add weight on a belt if need be, or leave it off if not.
In short, I cannot find very many reasons to NOT use a BP/W. They don't do anything worse than a poodle jacket, except when you are on the surface. This is diving, not bobbing, so surface performance is basically meaningless imho. A diver in the ocean should carry a lift bag and/or huge SMB so they can use those to help change the way they float if they really care. Therefore, I do reccomend BP/W to people, if they ask. If they don't ask, then no skin off my back.